Getbhavcopy: Free NSE and BSE data downloader

Hi!!! I am very new to this site,getbhavcopy and amibroker. I have downloaded the whole historical data of NSE, (from 07-11-1994 to 25-01-2010. I have done the settings of  Amibroker exatly as stated in getbhavcopy.com. but the issue is that although importing the whole data it only shows charts of only 6years approx ie upto yr 2000.

If i import data from a later date ie from 2005, uptodate chart is created.

My question is that how to set amibroker so that I can chart in amibroker without boundaries.

Thanks in advance

rajafcp